openapi: 3.1.0
info:
  title: Elasticsearch REST Cat API
  description: 'The Elasticsearch REST API exposes the core operations of the distributed search and analytics engine at the heart of the Elastic Stack. It allows clients to manage indices, ingest and retrieve documents, run search and aggregation queries, inspect cluster and node health, and operate snapshots and ingest pipelines.

    '
  version: 1.0.0
  contact:
    name: Elastic
    url: https://www.elastic.co
servers:
- url: http://localhost:9200
  description: Default local Elasticsearch endpoint
- url: https://{host}:{port}
  description: Self-hosted or Elastic Cloud cluster endpoint
  variables:
    host:
      default: localhost
    port:
      default: '9200'
security:
- basicAuth: []
- apiKeyAuth: []
tags:
- name: Cat
paths:
  /_cat/indices:
    get:
      summary: List indices
      operationId: catIndices
      tags:
      - Cat
      responses:
        '200':
          description: Human-readable list of indices
  /_cat/nodes:
    get:
      summary: List nodes
      operationId: catNodes
      tags:
      - Cat
      responses:
        '200':
          description: Human-readable list of nodes
components:
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
    apiKeyAuth:
      type: apiKey
      in: header
      name: Authorization
      description: ApiKey <base64-encoded-id:api_key>